Faculty and Technical Staff

Matthew Bement, Engineering Institute, LANLManufacturing; modeling; in-process monitoring; control.

Thomas Bewley, Mechanical and Aerospace Engineering, UCSDOptimization of turbulent flows; large-scale simulations; linear and nonlinear control and optimization theory.

Joel Conte, Structural Engineering, UCSDStructural analysis/dynamics; structural reliability and risk analysis; structural health monitoring.

Sanjoy Dasgupta, Computer Science Engineering, UCSDAnalysis of high-dimensional data; machine learning; artificial intelligence; bioinformatics.

Charles Farrar, Engineering Institute, LANLEngineering Institute DirectorStructural health monitoring; damage prognosis; sensor networks.

Rajesh Gupta, Computer Science Engineering, UCSDEmbedded systems; low power design; compositional models and methods.

Francois Hemez, X Division, LANLVerification and validation; uncertainty; computational physics; decision-making.

William Hodgkiss, Electrical and Computer Engineering; Scripps Institution of Oceanography, UCSD Signal/array processing; sensor networks; communications; environmental inversions.

Bimal Kad, Structural Engineering, UCSDProcessing-structure-property relationships; high temperature alloys; creep under aggressive environments.

John Kosmatka, Structural Engineering, UCSDComposites; structural health monitoring; vibrations; structural analysis; dynamics stability; aeroelasticity.

Miroslav Krstic, Mechanical and Aerospace Engineering, UCSDNonlinear control; flexible structures; adaptive control; real-time optimization; mobile robots.

Francesco Lanza di Scalea, Structural Engineering, UCSDWave-based diagnostic systems for smart structures; time-frequency processing in NDE/SHM; experimental mechanics.

Gyuhae Park, Engineering Institute, LANLActive material systems; energy harvesting; actuator/sensor technology; vibration analysis and control; structural health monitoring.

Michael Prime, WT Division, LANLResidual stresses; fatigue; fracture; distortion; high rate material behavior; shock physics.

Tajana Rosing, Computer Science Engineering, UCSDEmbedded systems; low power computing; wireless sensor networks; SOCs; energy harvesting for sensor nets.

Frieder Seible, Structural Engineering, UCSDLarge-scale structural testing; seismic retrofit; bomb blast mitigation.

Daniel Tartakovsky, Mechanical and Aerospace Engineering, UCSDData assimilation; model uncertainty; uncertainty quantification; inverse modeling; multiscale-multiphysics modeling; hybrid methods.

Michael Todd, Structural Engineering, UCSD; Engineering Institute Campus DirectorStructural health monitoring; nonlinear time series; fiber optics.

An education and research partnershipto advance global security

www.jacobsschool.ucsd.edu/EEI

9500 Gilman Dr.La Jolla , CA 92093-0403(858) 534-4575lanl@ucsd.edu

Los Alamos Research Park4200 West Jemez Rd., Bldg. 1, Ste. 300Los Alamos Research Park, NM 87544(505) 663-5206

University of California, San DiegoLos Alamos National Laboratory

Research for Managing Critical Infrastructure

UC San Diego and Los Alamos researchers are working together to develop advanced damage prognosis systems for Unmanned Air Vehicles that are used extensively by the military and science communities for surveillance, data collection, and defense applications. The system is needed to monitor UAV composite wings, fuselage, and empennages in an effort to assess structural integrity, identify maintenance needs, and predict the remaining life of these critical components. The UCSD-Los Alamos real-time solution could be used for in-flight monitoring or for preflight diagnostic tests to assess stiffness and strength degradation caused by either fatigue or impact damage. Both passive (sensors only) and active (embedded sensors and actuators) strategies are being developed for this application. Robust analytical structural models with quantified geometric and material uncertainties, that account for the uncertainties associated with current and future loadings, are being integrated into a structural reliability framework to predict remaining component and system life.

ParticipantsUCSD: Professors John Kosmatka, Joel Conte and Francesco Lanza di Scalea; Graduate students Howard Matt, Maurizio Gobbato and Joseph OliverLos Alamos: Gyuhae Park, Francois Hemez and Trevor Tippetts

Research Projects

»UAV Damage Prognosis and Reliability

»Nonlinear Shake Table Control

»Unmanned Stockpile Surveillance

»Rapid Integrated Structural Health Assessment Using Unmanned Delivery Platforms

»Weld Residual Stresses in Low Symmetry HCP- Beryllium Materials

»Cylindrical Composite Spring Analysis Code

»Adaptive Sensing and Controls for Time Variant Systems

»Damage Detection and Degradation Tracking in High Strength Steel Canisters

»Hydrocode Simulations of Experiments on Shock Melting of Metals

»Structural Joint Integrity Monitoring and Assessment

Established in 2003, the Engineering Institute is an education and research partnership between the Los Alamos National Laboratory and the UC San Diego Jacobs School of Engineering. The Institute aims to attract, educate and retain a technical workforce relevant to the Lab’s mission of enhancing global security; and to advance research for management of critical infrastructure in the civil and defense sectors.

Graduate Program in Structural Health Monitoring

UCSD’s multidisciplinary graduate program in structural health monitoring is one of the first of its kind in this emerging field. Courses are jointly taught by UCSD engineering faculty and Los Alamos senior scientists, and are open to both UCSD graduate students and Los Alamos employees. As part of this research-focused education program, students work on real-world projects at Los Alamos.

Collaborative Research

The Engineering Institute provides a platform for collaborative research between UCSD faculty and students and Los Alamos scientists. This partnership leverages UCSD’s strengths in large-scale structural testing, high performance computing and simulation, and sensor and sensor networks with Los Alamos’ expertise in damage prognosis, modeling and characterization.

More than 12 courses per year are delivered between UCSD and Los Alamos via a 2-way interactive video link.

Bolted joint in hybrid composite/metal ships such as the DD-X

Pictured: Professor Hodgkiss teaches digital signal processing class.

Preparing the Technical Workforce

In June 2006, David Mascareñas became one of the first students to earn a graduate degree through the Engineering Institute. Mascareñas came to Los Alamos in 2003 to attend the Dynamics Summer School, an undergraduate research experience of the Engineering Institute. After completing his B.S. in mechanical engineering at Colorado State, he entered UCSD where he received a LANL-sponsored Graduate Fellowship for Minorities in Science and Engineering. David is one of six students to enter through the Institute’s undergraduate summer program and to continue on for graduate work at UCSD.

Mascareñas works with his co-advisors, Gyuhae Park (LANL) and Michael Todd (UCSD) on remote inspection of bolted joints using sensors and RF ID tags. At the 2006 SPIE Smart Structures and Nondestructive Evaluation Conference, David presented his research that was nominated for the conference’s best paper award. David is now pursing his Ph. D. at UCSD and spends summers at Los Alamos working on his research.

David Mascareñas

Strain energy distribution in UAV composite wing.